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[1]REN Jiancheng,GONG Zaiwu,ZHENG Baozhi.Spatiotemporal Characteristics of Drought/Flood in the Yellow River Delta Based on SPI in Recent 30 Years[J].Research of Soil and Water Conservation,2016,23(01):268-271,277.

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Spatiotemporal Characteristics of Drought/Flood in the Yellow River Delta Based on SPI in Recent 30 Years

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 01 Page number: 268-271,277 Column: Public date: 2016-02-28

Title:: Spatiotemporal Characteristics of Drought/Flood in the Yellow River Delta Based on SPI in Recent 30 Years

Author(s):: REN Jiancheng^1,2, GONG Zaiwu¹, ZHENG Baozhi²; 1. School of Public Administration, Nanjing University of Information Science & Technology, Nanjing 210044, China;
2. Binzhou Meteorological Bureau, Binzhou, Shandong 256600, China

Keywords:: drought/flood; spatiotemporal characteristics; standardized precipitation index (SPI); Yellow River Delta

CLC:: P426.61

DOI:: -

Abstract:: Based on the monthly precipitation data in the Yellow River Delta area during the period from 1981 to 2010 and the standardized precipitation index (SPI), the spatiotemporal character of drought and flood in the area was analyzed. The results showed that drought was frequent in the Yellow River Delta in the 1980s, and the flood was frequent in later 1990s and after 2002, a trend of alternating droughts and floods presented in the other periods; with regard to the characteristics of the 4-quarter change of drought and waterlogging in the Yellow River Delta area, from the long-term trend, the 4-quarter showed the trend to the development of flood; drought and flood change characteristics of the Yellow River Delta were basically the same, and showed the rainy trend, but there were subtle differences in changes of drought and flood; the greatest variation of flood and drought was observed in the Yellow River Delta in early 1990s and in the later 1980s, followed by the early 2000s, rate of change was small in the rest periods, the change rate of overall and regional change rate were consistent in general.

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